Table 1.
Components of cedar leaf essential oil (Cedrus libani) as identified by GC-MS.
| No. | SIa | RTb | Compoundsc,e | Composition (%)d |
|---|---|---|---|---|
| 1 | 840 | 4.70 | 1,8-cineole | 0.53 |
| 2 | 780 | 5.56 | Fenchone | 14.18 |
| 3 | 866 | 5.85 | β-Thujone | 28.01 |
| 4 | 889 | 6.01 | α-Thujone | 20.30 |
| 5 | 811 | 6.28 | Thujyl alcohol | 0.80 |
| 6 | 935 | 6.43 | Camphor | 8.66 |
| 7 | 843 | 6.66 | Isoborneol | 0.56 |
| 8 | 888 | 6.80 | 1-Borneol | 4.71 |
| 9 | 752 | 7.13 | 1- α-Terpineol | 2.03 |
| 10 | 570 | 7.38 | Exo-2-Hydroxycineole | 0.74 |
| 11 | 603 | 7.50 | D-Fenchyl alcohol | 0.77 |
| 12 | 453 | 7.78 | 5,6,7,8-Tetrahydro-7-methylidene-5 | 1.25 |
| 13 | 897 | 8.46 | Endobornyl acetate | 4.41 |
| 14 | 880 | 8.88 | Thymol | 3.67 |
| 15 | 488 | 9.83 | Methyl t-5-hydroxy-2-isopropyl-5 | 1.44 |
| 16 | 646 | 10.36 | Bicyclo | 3.12 |
| 17 | 566 | 10.89 | Methyl t-5-hydroxy-2-isopropyl-5 | 1.44 |
| 18 | 897 | 15.94 | Rimune | 1.51 |
| 19 | 815 | 16.34 | Beyerene | 1.85 |
Components of essential oils present at >4% are indicated by bold font.
a
SI: Library search purity value.
b
Retention time (RT).
c
Compounds are listed in order of elution from a DB-5 capillary column.
d
Percentages were calculated by normalizing FID peak areas.
e
Identification based on computer matching of electron ionization mass spectra using the Wiley and NIST libraries.